%% This module echoes back the value the test is interested in.
-module(asterisk_h).
-export([init/2]).
init(Req, Opts) ->
echo(cowboy_req:header(<<"x-echo">>, Req), Req, Opts).
echo(undefined, Req, Opts) ->
{ok, cowboy_req:reply(200, Req), Opts};
echo(What, Req, Opts) ->
F = binary_to_atom(What, latin1),
Value = case cowboy_req:F(Req) of
V when is_integer(V) -> integer_to_binary(V);
V -> V
end,
{ok, cowboy_req:reply(200, #{}, Value, Req), Opts}.